Watthana (Rolfe) 2007 - Watthana S (2007) THE GENUS POMATOCALPA (ORCHIDACEAE) A TAXONOMIC MONOGRAPH. Harvard Papers in Botany 11: 207-256. doi: 10.3100/1043-4534(2007)11[207:tgpoat]2.0.co;2.
There is no corrections for Pomatocalpa undulatum subsp. acuminatum yet.